2.Dual-energy CT angiography plus CT perfusion-diagnostic value in coronary artery disease: initial experience
Rui WANG ; Zhaoqi ZHANG ; Miao GUO ; Xiaoyong HUANG ; Wei YU ; Yongmei WANG ; Zixu YAN ; Tao BI ; Yang YU ; Liqun CHI
Chinese Journal of Radiology 2011;45(2):111-115
Objective To evaluate the combination of dual-energy CT angiography (DE-CTA) and dual-energy CT peffusion (DE-CTP) in the diagnosis of coronary artery disease. Methods Thirty-one patients with angina pectoris were examined using dual-source dual energy CT and conventional coronary angiography. For DE-CTA, we used a contrast-enhanced ECG-gated coronary scan protocol with energy levels of two tube detector arrays at 140 and 100 kVp. Two kinds of acquired images were fused for the CT angiogram and further calculated to construct a perfusion map (Siemens DE Heart PBV). The compared the following results: DE-CTA vs. CA, DE-CTP vs. CA to assess the sensitivity and specificity, and further compared DE-CTA plus DE-CTP with CA. Results DECT obtained diagnostic image quality in 28 patients.DE-CTA detected 41/112 arterial stenosis. Using CA as a reference, the sensitivity of DE-CTA was 81%(38/47), specificity was 95% (62/65), positive predictive value was 92% (38/41), negative predictive value was 87% (62/71), and accuracy was 89% (100/112). DE-CTP detected 46 perfusion defects in artery territories. Using CA as a reference, the sensitivity of DE-CTP was 76% ( 36/47), specificity was 85% (55/65), positive predictive value was 78% (36/46), negative predictive value was 83% (55/66),and accuracy was 81% (91/112). DE-CTA plus DE-CTP diagnosed 52 arteries stenosis. Using CA as a reference, combination of DE-CTA and DE-CTP gave sensitivity of 95% ( 45/47 ), specificity of 89%(58/65) , NPV of 97% (58/60), and accuracy of 92% (103/112). Conclusions DECT can provide perfusion blood volume information as well as vessel pathology in one scan. DECT can provide comprehensive diagnosis and improve diagnosis of CAD.
3.Quantitative analysis of craniofacial skeleton asymmetry by three-dimensional computed tomography.
Rui-Chen WANG ; Gui-Zhen LI ; Chun-Ming LIU ; Chi-Yu JIA ; Quan-Wen GAO ; Yan HAN
Chinese Journal of Plastic Surgery 2013;29(6):435-439
OBJECTIVETo present a method of quantitative diagnosis of craniofacial skeleton deformities based on three-dimensional computed tomography (3D CT).
METHODS20 cases with facial asymmetric deformities underwent 3D CT and the 3D images were reconstructed by Mimics 10.0 (Belgium). Anatomical landmarks were located and the coordinate of the landmarks obtained. Axial images of 1 patient with Romberg disease was used as representative case. The differences in the distance between the right landmarks and the left were calculated and analyzed.
RESULTSThe measurement results were not significantly different between two stages with an interval of 4 weeks ( P > 0.05), showing a reproducible resutls. The deviation of landmarks at facial midline increased gradually from upward to downward, reaching (2.63 +/- 0.54) mm at menton point. Paired landmarks showed asymmetry in three dimensions, especially gonion point on the left side, which was deviated 10.21 mm inward, 9.26 mm forward, 6.30 mm upward, compared to the opposite side.
CONCLUSIONSThe method of 3D CT quantitative analysis can provide precise information in the diagnosis and treatment planning of facial asymmetry deformity.
Anatomic Landmarks ; diagnostic imaging ; Cephalometry ; Craniofacial Abnormalities ; diagnostic imaging ; Facial Asymmetry ; diagnostic imaging ; Humans ; Imaging, Three-Dimensional ; methods ; Tomography, X-Ray Computed ; methods
4.A randomized, placebo controlled study on Fangfeng Tongsheng granule in treatment of sub-acute eczema.
Ting ZHAO ; Wa-li LIU ; Ping WU ; Yong-jun LIU ; Yu-he YAN ; Jing WANG ; Chi-jin ZHANG ; Guang-rui LI ; Gang LI ; Fu-sheng WANG ; Min FAN
China Journal of Chinese Materia Medica 2015;40(7):1415-1418
The clinical study was conducted to further evaluation the effectiveness and safety of Fangfeng Tongsheng granule in the treatment of sub-acute eczema (superficial cold and interior heat syndrome, exterior and interior sthenic syndrome). In the block randomized, multi-centered study, totally 108 patients were enrolled and assigned to two groups: 72 patients in the test group and 36 patients in the placebo control group. Those in the test group took Fangfeng Tongsheng granule with the dose of 3 g, twice a day, while those in the control group were give simulated agent granules with the same dose. The therapeutic course lasted for 14 days. Their efficacies in TCM syndrome, dermal symptoms and adverse events were observed. According to the test results, except for the one exit case, all of the remaining 108 cases, including 71 in the test group, and 36 in the control group, completed the clinical trial. As for the efficacy of TCM syndrome, after the medication for 2 weeks, the cure rate was 33.81% (24/71) in the test group and 0% (0/36) in the control group (P < 0.01), with a statistical difference between the two groups. Regarding the TCM score, after the medication for 2 weeks, the test group decreased by (12.82 +/- 7.96), while the control group decreased by (3.67 +/- 4.12), indicating a statistical difference between the two groups. As for the efficacy of dermal symptoms, after the medication for 2 weeks, the cure rate was 25.35% (18/71) in the test group and 0% (0/36) in the control group, with a statistical difference between the two groups. Regarding the dermal symptom score, after the medication for 2 weeks., the test group decreased by (10.04 +/- 7.17), while the control group decreased by (2.33 +/- 3.57), indicating a statistical difference between the two groups. There was no significant adverse event caused by Fangfeng Tongsheng granule. In conclusion, Fangfeng Tongsheng granule was effective and safe in treating subcute eczema (superficial cold and interior heat syndrome, exterior and interior sthenic syndrome).
Adolescent
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Adult
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Aged
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Drugs, Chinese Herbal
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administration & dosage
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Eczema
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drug therapy
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Female
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Humans
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Male
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Middle Aged
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Phytotherapy
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Treatment Outcome
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Young Adult
5.Effect mechanism investigation of herb-partitioned moxibustion on relieving colon inflammation in Crohn disease rats based on neutrophil extracellular traps
Chi LU ; Jing XU ; Yuan LU ; Luyi WU ; Chunhui BAO ; Zhe MA ; Rui ZHONG ; Zhaoqin WANG ; Kexin SUN ; Handan ZHENG ; Zhijun WENG ; Yan HUANG ; Huangan WU ; Yanping YANG
Journal of Acupuncture and Tuina Science 2024;22(3):173-183
Objective:To explore the mechanism of herb-partitioned moxibustion in relieving rat intestinal inflammation by focusing on the neutrophil extracellular traps(NETs)in Crohn disease(CD)development. Methods:Rats were randomly divided into a normal group,a model group,a herb-partitioned moxibustion group,and a mesalazine group.The CD rat model was prepared with 2,4,6-trinitrobenzene sulfonic acid except for rats in the normal group.Rats in the normal group and model group did not receive any treatment but had the same fixation as the other groups.Rats in the herb-partitioned moxibustion group received herb-partitioned moxibustion at Qihai(CV6)and bilateral Tianshu(ST25).Rats in the mesalazine group received intragastric administration of mesalazine enteric-coated tablets.The general situation of rats in each group was recorded,and the histopathological changes in the colon were observed and scored by hematoxylin-eosin staining.The serum concentrations of NETs DNA(NETs-DNA),neutrophil elastase(NE)-DNA,and myeloperoxidase(MPO)-DNA were detected by ABC enzyme-linked immunosorbent assay,and the citrullinated histone 3(citH3),MPO,and NE protein and mRNA expression levels in rat colon tissue were observed by immunofluorescence and real-time quantitative polymerase chain reaction. Results:Compared with the normal group,the mucosal ulcer reached the muscularis,the epithelium was incomplete,the goblet cells decreased obviously with significant inflammatory cell infiltration in the colon;the colonic mucosa damage index(CMDI)score increased significantly(P<0.01);the serum NETs-DNA,NE-DNA,and MPO-DNA concentrations increased(P<0.05);the NE,citH3,and MPO protein and mRNA expression in the colonic tissue increased significantly in the model group(P<0.01 or P<0.05).Compared with the model group,the mucosal epithelium in the herb-partitioned moxibustion group and the mesalazine group was repaired and the goblet cells increased with a few infiltrating inflammatory cells in the colon;the CMDI score decreased(P<0.01);the serum NETs-DNA,NE-DNA,and MPO-DNA concentrations decreased(P<0.05);the NE,citH3,and MPO protein and mRNA expression in the colonic tissue was down-regulated(P<0.01 or P<0.05). Conclusion:Herb-partitioned moxibustion reduced the serum NETs complex and inhibited the protein and mRNA expression of NETs complex in the colon tissue,which may be one mechanism of herb-partitioned moxibustion in relieving colon mucosal inflammation in CD.
6.Best evidence summary of cognitive management of mild cognitive impairment in the elderly patients
Xiaoyan LIU ; Yi QIN ; Xiaoling ZHU ; Juan WU ; Rui ZHAO ; Yan SONG ; Chi SUN ; Hua ZHANG ; Min SUN
Chinese Journal of Modern Nursing 2022;28(36):5027-5035
Objective:To search, evaluate and summarize the best evidence of cognitive management of mild cognitive impairment (MCI) in the elderly patients, so as to provide evidence-based basis for nursing intervention and care.Methods:The article on the management of elderly MCI was systematically searched in UpToDate, National Institute for Health and Care Excellence, National Guideline Clearinghouse, Chinese Guideline Network, Joanna Briggs Institute Evidence-Based Health Care Center in Australia, Registered Nurses' Association of Ontario in Canada, Ovid JBI, Wiley, PubMed, WanFang Data, China National Knowledge Infrastructure, and VIP, including the latest clinical practice guideline, systematic review, expert consensus, and thematic evidence summary, randomized controlled trial and quasi experimental study. The retrieval time limit was from January 1, 2012 to December 31, 2021. Two elderly nursing researchers independently evaluated the article quality and extracted the best evidence.Results:A total of 14 articles were included, involving 3 clinical practice guidelines, 3 expert consensus, 3 systematic reviews, 1 thematic evidence summary, 3 randomized controlled trials, and 1 quasi experimental study. According to the clinical situation and the comprehensive management system of community-outpatient screening-diagnosis-comprehensive intervention-returning to the community, a total of 33 pieces of evidence were formed in 7 aspects, including evaluation object and opportunity, evaluation content and screening tools, disease diagnosis and management, Cognitive Training Nursing Clinic construction, cognitive training and intervention methods, care support management, and effect evaluation.Conclusions:This article summarizes the best evidence of cognitive management of the elderly with MCI, and provides evidence-based basis for medical and nursing staff to carry out targeted cognitive management.
7.Clinical management of refractory prolactinomas:stone to sharpen yan,blunt for profit
Rui-Feng WANG ; Xiao-Zhen YE ; Jian-Rui LI ; Jing LI ; Jia-Liang LI ; Zi-Xiang CONG ; Yan LU ; Nan WU ; Yi-Feng GE ; Chi-Yuan MA ; Jia-Qing SHAO
Medical Journal of Chinese People's Liberation Army 2024;49(11):1237-1243
Refractory prolactinoma is the most common pituitary neuroendocrine tumor.Dopamine receptor agonists(DA)are the primary choice for drug treatment.Most patients with prolactinomas respond well to DA.However,a minority of prolactinomas patients still show resistance to DA.Although drug-resistant and refractory prolactinomas are rare in clinical practice,their treatment is extremely challenging.Even a combination of drug therapy,multiple surgeries,and radiotherapy may not yield satisfactory outcomes.Therefore,standardizing the diagnosis and treatment process and pathway for refractory prolactionmas and exploring more effective multidisciplinary collaborative treatment strategies are urgent problems to be solved.In the clinical management of refractory prolactinomas,it is often necessary to consider the patient's condition comprehensively,replace other types of DA,or consider surgery,radiotherapy,and immunotherapy,which requires multidisciplinary diagnosis and treatment.This review synthesizes the latest literature at home and abroad to systematically discuss the latest advances in drug therapy,surgery,and radiotherapy treatments for refractory prolactionmas,aiming to provide new ideas for basic research,clinical diagnosis and treatment.
8.One-stop strategy for treatment of atrial fibrillation: feasibility and safety of combining catheter ablation and left atrial appendage closure in a single procedure.
Mu CHEN ; Zhi-Quan WANG ; Qun-Shan WANG ; Jian SUN ; Peng-Pai ZHANG ; Xiang-Fei FENG ; Wei LI ; Ying YU ; Bo LIU ; Bin-Feng MO ; Rui ZHANG ; Mei YANG ; Chang-Qi GONG ; Ming-Zhe ZHAO ; Yi-Chi YU ; Yan ZHAO ; Qiu-Fen LU ; Yi-Gang LI
Chinese Medical Journal 2020;133(12):1422-1428
BACKGROUND:
Catheter ablation is effective in restoring sinus rhythm and left atrial appendage closure (LAAC) is increasingly used for stroke prevention in patients with atrial fibrillation (AF). We aimed to observe the feasibility and safety of performing AF ablation and LAAC in a single (one-stop) procedure.
METHODS:
Consecutive AF patients who underwent the combined procedure of AF ablation and LAAC with WATCHMAN device between March 2017 and September 2018 were prospectively enrolled. Baseline and intra-procedural parameters were evaluated. Three-month and subsequent 1-year follow-up were performed in all and earlier-enrolled subjects, respectively.
RESULTS:
A total of 178 AF patients (94 males, 68.9 ± 8.1 years) underwent the one-stop procedure with CHA2DS2-VASc score 3.3 ± 1.5 and HAS-BLED score 1.6 ± 1.0, respectively. Pulmonary vein isolation was achieved in all patients while additional linear ablation was applied if the operator deemed necessary, yielding immediate ablation success rate of 98.9% (176/178). In the subsequent LAAC, satisfactory seal (residual leak <5 mm) was achieved in all patients. One stroke and four cardiac perforations occurred peri-operatively. At 3-month follow-up, sinus rhythm and satisfactory seal were maintained in 153/178 (86.0%) and 178/178 (100%) patients, respectively. One stroke and one delayed cardiac tamponade occurred, while no device-related thrombus or device migration was observed. During the 1-year follow-up for the earlier enrolled subjects, 52/72 (72.2%) of the patients maintained sinus rhythm. There was no stroke or systemic embolism observed.
CONCLUSION
Combining catheter ablation and LAAC in a single procedure can be successfully and safely performed in non-valvular AF patients of Chinese population.
9.Development of tilted implant for free end of maxillary posterior teeth.
Xi-Rui XIN ; Qing CAI ; Han-Chi WANG ; Yan-Min ZHOU
West China Journal of Stomatology 2020;38(1):86-89
Vertical bone insufficiency in the maxillary posterior teeth is a common clinical situation. At present, the bone insufficiency in the maxillary posterior teeth is mainly overcome by bone grafting through maxillary sinus floor elevation. Compared with traditional axial implantation, tilted implantation can better avoid bone grafting, reduce complications, shorten the treatment cycle, reduce the treatment cost for patients, and gradually be promoted in clinical settings. This article reviews the concept, biomechanics, clinical evaluation, and digital trend of tilted implants of maxillary posterior teeth.
Dental Implantation, Endosseous
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Dental Implants
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Dental Prosthesis Design
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Humans
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Maxilla
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Maxillary Sinus
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Sinus Floor Augmentation
10.Phosphatidylinositol 3-kinases Play a Suppressive Role in Electrotaxis of Dictyostelium Cells Through Akt and ERK
Xiao-Xue GE ; Rui-Da JIANG ; Xiao-Yan WANG ; Jing GAO ; Run-Chi GAO
Progress in Biochemistry and Biophysics 2024;51(3):685-695
ObjectivePhosphatidylinositol 3 kinases (PI3Ks) play an important role in cell directional movement by regulating F-actin. However, the structure and function of PI3Ks are complex. The role of PI3Ks in cell electrotaxis is not fully understood. Therefore, in this study, the model organism Dictyostelium discoideum cells were used as experimental materials to explore the role of PI3K1 and PI3K2 in electrotaxis. MethodsFirstly, PI3K1 coding gene pikA knockout mutant and PI3K2 coding gene pikB knockout mutant were constructed by CRISPR/Cas9 system. Secondly, two mutants were placed in a DC electric field with a strength of 12 V/cm and the electrotaxis were analyzed. ResultsData analysis showed that the direction index of wild-type cells in DC electric field was (0.86±0.03), while the direction index of pikA- and pikB- mutants in DC electric field was (0.95±0.02) and (0.94±0.03), respectively. In addition, the average trajectory speed of wild-type cells in the electric field was (3.34±0.08) μm/min, while the average trajectory speed of pikA- and pikB- mutants were (4.85±0.20) μm/min and (5.48±0.15) μm/min, respectively. The t test showed that there were significant differences in the directedness index and speed between the mutant and wild type. Western blot results showed that both phosphorylated Akt and phosphorylated ERK were significantly increased in pikA- and pikB- mutants. ConclusionPI3K1 and PI3K2 may inhibit the electrotaxis of Dictyostelium discoideum cells by increasing the activity of Akt and ERK.